21987862

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{443}}^1$

素因数の和:564

約数の個数: 32

約数和(自身を含む): 37594368

約数和(自身を除く): 15606506

約数列:

[1, 2, 13, 23, 26, 46, 83, 166, 299, 443, 598, 886, 1079, 1909, 2158, 3818, 5759, 10189, 11518, 20378, 24817, 36769, 49634, 73538, 132457, 264914, 477997, 845687, 955994, 1691374, 10993931, 21987862]

約数ペア:

[(1, 21987862), (2, 10993931), (13, 1691374), (23, 955994), (26, 845687), (46, 477997), (83, 264914), (166, 132457), (299, 73538), (443, 49634), (598, 36769), (886, 24817), (1079, 20378), (1909, 11518), (2158, 10189), (3818, 5759)]